Cockades are an easy fix....most dealers would have a ticket of €650 on that.

Yes but original cockades other than Prussian are not that easy to find and pricey (80-120 euro a piece). 650 dealer's price - yes quite possible but that would be way overpriced and they would end up not selling it. This is more of an ebay item and on ebay 350-400 would be attainable - IMO not much more. Only interesting on the cheap.